Mounting Arrangement

Abstract

A mounting arrangement is disclosed for use in mounting a device having a drive shaft to a housing, the housing having a flange formed thereon, the mounting arrangement comprising a first flange provided on the device and securable to the flange provided on the housing, the first flange having a centreline, the drive shaft of the device having an axis of rotation which is offset from the centreline. A device incorporating such a mounting arrangement is also described.

1 . A mounting arrangement for use in mounting a device having a drive shaft to a housing, the housing having a flange formed thereon, the mounting arrangement comprising a first flange provided on the device and securable to the flange provided on the housing, the first flange having a centreline, the drive shaft of the device having an axis of rotation which is offset from the centreline. 
     
     
         2 . An arrangement according to  claim 1 , wherein the first flange is of circular or substantially circular peripheral shape, the axis of rotation being eccentric to the first flange. 
     
     
         3 . An arrangement according to  claim 1 , wherein the device is provided with a first projecting pilot formation of generally cylindrical shape receivable within a corresponding recess provided in the housing. 
     
     
         4 . An arrangement according to  claim 3 , wherein the first projecting pilot formation is concentric with the centreline of the first flange and is thus offset from the axis of rotation. 
     
     
         5 . An arrangement according to  claim 3 , wherein a second projecting pilot formation of generally cylindrical shape is provided, the second projecting pilot formation being receivable within a corresponding recess provided in the housing. 
     
     
         6 . An arrangement according to  claim 5 , wherein the second projecting pilot formation is co-axial with the axis of rotation of the drive shaft. 
     
     
         7 . An arrangement according to  claim 5 , wherein the second pilot formation projects from within the first pilot formation. 
     
     
         8 . An arrangement according to  claim 5 , wherein the first pilot formation projects from within the second pilot formation. 
     
     
         9 . An arrangement according to  claim 3 , wherein one or more drain passages open onto the first pilot formation. 
     
     
         10 . An arrangement according to  claim 9 , wherein the said drain passage opens at or adjacent a point on the first pilot formation furthest from the axis of rotation. 
     
     
         11 . An arrangement according to  claim 1 , wherein a V-band retention device is used to secure the flanges to one another. 
     
     
         12 . A device incorporating a mounting arrangement as claimed in  claim 1 . 
     
     
         13 . A device according to  claim 12 , wherein the device comprises an electrical generator or other accessory for mounting on an aircraft engine gear box.